Fast Calculation Method of Energy Flow for Combined Electro-Thermal System and Its Application - Energy and Power Engineering

EPE > Vol.9 No.4, April 2017

Energy and Power Engineering

Volume 9, Issue 4 (April 2017)

ISSN Print: 1949-243X ISSN Online: 1947-3818

Google-based Impact Factor: 1.42 Citations

Fast Calculation Method of Energy Flow for Combined Electro-Thermal System and Its Application ()

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Download as PDF (Size: 349KB) PP. 376-389

DOI: 10.4236/epe.2017.94B043 2,770 Downloads 3,709 Views Citations

Author(s)

Shuxin Liu¹, Sai Dai², Qiang Ding², Linxian Hu¹, Qixiang Wang¹

Affiliation(s)

¹School of Electrical Engineering & Automation, Harbin Institute of Technology, Harbin, China.
²China Electric Power Research Institute, Beijing, China.

ABSTRACT

In recent years, Combined electro-thermal system has developed rapidly. In order to provide the initial data for the analysis of the combined electro-thermal system, a practical energy flow calculation method for the combined electro-thermal system is proposed in this paper. Based on the detailed analysis of the topology structure of the heating network and its hydraulic and thermodynamic model, the forward-backward sweep method for the heat flow of the heating network is established, which is more suitable for the actual radial heating network. The electric and thermal coupling model for heating source, such as thermoelectric unit and electric boiler is established, and the heat flow of heating network and the power flow of power grid are calculated orderly, thus a fast calculation method for the combined electro-thermal system is formed. What’s more, a combined electro-thermal system with two-stage peak-shaving electric boiler is used as the example system. This paper validates the effectiveness and rapidity of this method through the example system, and analyzes the influence for the energy flow of combined electro-thermal system caused by the operating parameters such as the installation location of electric boiler, the outlet water temperature of heat source and the outlet flow rate, etc.

KEYWORDS

Combined Electro-Thermal System, Energy Flow, Recursive Heat Flow Model for Heating Network, Electric and Thermal Coupling Model

Share and Cite:

Liu, S. , Dai, S. , Ding, Q. , Hu, L. and Wang, Q. (2017) Fast Calculation Method of Energy Flow for Combined Electro-Thermal System and Its Application. Energy and Power Engineering, 9, 376-389. doi: 10.4236/epe.2017.94B043.

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